Checker brickwork construction for regenerators



March 7, 1933. J` F, HYSLOP 1,900,817

CHECKER BRICKWORK CONSTRUCTION FOR REGEIERATORS Filed March 30, 1952 Patented Mar. 7, 12933 lUNITED STATES PATENT OFFICE JOSEPH FRASER HYSLOP, F FALKIRK, SCOTLAND Application lcd March 30, 1932, Serial No. 602,057, and in, Great Britain March 30, 1931.

This invention relates to improvements in checker brick-work for regenerators and aims to provide an improved construction giving an optimum relation of heating surface to brick volume.

Essential to the invention are the formation or disposition of the checker bricks so that faces presented thereby and forming boundaries of vertical fiues will be inclined obliquely to closed walls between which the checker bricks extend, and the superimposition on each course of such checker bricks, in vertically spaced relation thereto, of a course of checker bricks similarly formed but with their oblique faces oppositely inclined to those of the lower course, so that the planes of the oblique faces presented by such upper course intersect the planes of the oblique faces presented by the lower course,

whence there result vertical flues of approximately diamond or hexagonal section.

In practice, each checker brick may be formed with offset rectangular end portions joined by an oblique portion, in which event,

the checker bricks are supported at the ends by bricks of inverted T-shape; the rectangular ends of the checker bricks forming with the T-shaped bricks closed walls.

The checker bricks may be formed with apertures, corrugations, grooves or the like to increase the effective surface and Hue area.

In the accompanying drawing Fig. 1 is an elevation and Fig. 2 a plan of a checker brick-work construction according to the invention.

As shown in the drawing,' the checker bricks 1 are so formed and disposed that the faces 2 presented thereby and forming boundaries of vertical {iues 3 are inclined oblique- 40 ly to closed walls 4 between which the checker bricks extend. Superimposed on each course of such checker bricks, in vertically spaced relation thereto, is a course of checker bricks similarly formed but with their oblique faces oppositely inclined to those of the lower course, so that the planes of the oblique faces presented by such upper coursel intersect the planes of the oblique Vfaces presented by the lower course, as seen clearly in Plan in Fisg 2, The vertical filles 3 are @has of approximately diamond section or hexagonal section. It will be understood that the dimensions of the iues willbe fixed in dependence on the type of furnace to which the invention is applied.

The inclined faces of the checkerbricks may be' continuous or may be stepped as shown at 1a in Fig. 2.

As shown in Fig. 2 each checker brick l is formed with off-set rectangular end portions joined by an oblique portion, the bricks 5 supporting the checker bricks l being of inverft'ed T-shape so that the rectangular ends of the checker bricks form with the T-shaped bricks 5 the closed walls 4 as shown 65 in Fig. l.

What I claim is 1. Checker brick-work for regenerators comprising closed parallel walls including staggered courses of supporting bricks of inverted T-shape, and superposed vertically spaced courses of checker bricks extending between said walls and formed with rectangular end portions filling the gaps left by said supporting bricks, said checker bricks presenting lateral faces disposed in vertical planes inclined obliquely to said closed walls and forming boundaries of vertical flues, the checker bricks of alternate courses havingV oblique faces oppositely inclined to those of the other courses, whereby to afford vertical flues of approximately diamond section in plan.

2. Checker brick-work as claimed in claim 1 in which the inclined faces of the checker bricks are stepped.

In testimony whereof I have signed my name to this specification.

JOSEPH FRASER HYSLOP. 

